20081516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1283}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 44292864

約数和(自身を除く): 24211348

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 1283, 2236, 2566, 3913, 5132, 7826, 8981, 15652, 16679, 17962, 33358, 35924, 55169, 66716, 110338, 116753, 220676, 233506, 386183, 467012, 717197, 772366, 1434394, 1544732, 2868788, 5020379, 10040758, 20081516]

約数ペア:

[(1, 20081516), (2, 10040758), (4, 5020379), (7, 2868788), (13, 1544732), (14, 1434394), (26, 772366), (28, 717197), (43, 467012), (52, 386183), (86, 233506), (91, 220676), (172, 116753), (182, 110338), (301, 66716), (364, 55169), (559, 35924), (602, 33358), (1118, 17962), (1204, 16679), (1283, 15652), (2236, 8981), (2566, 7826), (3913, 5132)]